./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 23726cd354436105a1bc7112dada13904e5f655b ............................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:20:35,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:20:35,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:20:35,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:20:35,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:20:35,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:20:35,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:20:35,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:20:35,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:20:35,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:20:35,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:20:35,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:20:35,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:20:35,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:20:35,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:20:35,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:20:35,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:20:35,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:20:35,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:20:35,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:20:35,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:20:35,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:20:35,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:20:35,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:20:35,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:20:35,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:20:35,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:20:35,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:20:35,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:20:35,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:20:35,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:20:35,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:20:35,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:20:35,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:20:35,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:20:35,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:20:35,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:20:35,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:20:35,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:20:35,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:20:35,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:20:35,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-30 01:20:36,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:20:36,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:20:36,010 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:20:36,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 01:20:36,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:20:36,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:20:36,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:20:36,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:20:36,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:20:36,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:20:36,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:20:36,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:20:36,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:20:36,014 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:20:36,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:20:36,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:20:36,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:20:36,016 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 01:20:36,016 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 01:20:36,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:20:36,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:20:36,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:20:36,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:20:36,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:20:36,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:20:36,018 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 01:20:36,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:20:36,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:20:36,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23726cd354436105a1bc7112dada13904e5f655b [2020-11-30 01:20:36,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:20:36,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:20:36,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:20:36,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:20:36,373 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:20:36,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple2.c [2020-11-30 01:20:36,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/data/5ff442226/782b71d8a0794e3aafde259e939be98f/FLAGc83743c25 [2020-11-30 01:20:36,998 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:20:36,998 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/sv-benchmarks/c/termination-crafted/NonTerminationSimple2.c [2020-11-30 01:20:37,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/data/5ff442226/782b71d8a0794e3aafde259e939be98f/FLAGc83743c25 [2020-11-30 01:20:37,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/data/5ff442226/782b71d8a0794e3aafde259e939be98f [2020-11-30 01:20:37,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:20:37,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:20:37,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:20:37,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:20:37,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:20:37,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624a0312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37, skipping insertion in model container [2020-11-30 01:20:37,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:20:37,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:20:37,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:20:37,558 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:20:37,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:20:37,628 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:20:37,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37 WrapperNode [2020-11-30 01:20:37,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:20:37,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:20:37,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:20:37,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:20:37,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:20:37,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:20:37,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:20:37,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:20:37,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... [2020-11-30 01:20:37,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:20:37,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:20:37,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:20:37,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:20:37,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:20:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:20:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:20:38,025 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:20:38,025 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:20:38,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:38 BoogieIcfgContainer [2020-11-30 01:20:38,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:20:38,029 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 01:20:38,029 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 01:20:38,040 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 01:20:38,040 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:38" (1/1) ... [2020-11-30 01:20:38,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:38,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-11-30 01:20:38,103 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-11-30 01:20:38,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 01:20:38,105 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:38,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:38,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:38,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:38,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:38,260 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-11-30 01:20:38,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 01:20:38 ImpRootNode [2020-11-30 01:20:38,282 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 01:20:38,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:20:38,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:20:38,285 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:20:38,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:38" (3/4) ... [2020-11-30 01:20:38,288 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:20:38,332 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5d30bf36-813d-474d-a7fc-db88f877d425/bin/ukojak/witness.graphml [2020-11-30 01:20:38,332 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:20:38,335 INFO L168 Benchmark]: Toolchain (without parser) took 945.95 ms. Allocated memory is still 100.7 MB. Free memory was 75.1 MB in the beginning and 58.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:38,336 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 100.7 MB. Free memory is still 59.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:20:38,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.71 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 79.7 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:38,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.92 ms. Allocated memory is still 100.7 MB. Free memory was 79.7 MB in the beginning and 78.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:20:38,343 INFO L168 Benchmark]: Boogie Preprocessor took 22.01 ms. Allocated memory is still 100.7 MB. Free memory was 78.3 MB in the beginning and 77.6 MB in the end (delta: 699.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:20:38,348 INFO L168 Benchmark]: RCFGBuilder took 337.26 ms. Allocated memory is still 100.7 MB. Free memory was 77.4 MB in the beginning and 68.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:38,350 INFO L168 Benchmark]: CodeCheck took 253.76 ms. Allocated memory is still 100.7 MB. Free memory was 68.3 MB in the beginning and 60.0 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:38,351 INFO L168 Benchmark]: Witness Printer took 47.89 ms. Allocated memory is still 100.7 MB. Free memory was 59.7 MB in the beginning and 58.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:20:38,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x; [L15] x = __VERIFIER_nondet_int() [L16] COND TRUE x >= 0 [L17] x + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 100.7 MB. Free memory is still 59.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 239.71 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 79.7 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.92 ms. Allocated memory is still 100.7 MB. Free memory was 79.7 MB in the beginning and 78.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.01 ms. Allocated memory is still 100.7 MB. Free memory was 78.3 MB in the beginning and 77.6 MB in the end (delta: 699.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 337.26 ms. Allocated memory is still 100.7 MB. Free memory was 77.4 MB in the beginning and 68.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 253.76 ms. Allocated memory is still 100.7 MB. Free memory was 68.3 MB in the beginning and 60.0 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 47.89 ms. Allocated memory is still 100.7 MB. Free memory was 59.7 MB in the beginning and 58.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...